Sonic the Hedgehog

Sonic the Hedgehog is the main character of the series of the same name. He has appeared in a few animations so far, and is voiced by ColcoAnimation Studios.

ColcoAnimation Studios
While he didn't have a voice in his first appearence, Sonic was first and currently voiced by Colco himself in the animation Sonic Meets His Match.

Mario vs. Sonic
Sonic made his first animation appearence in Mario vs. Sonic where he fought Mario. After a long battle, he ends up losing to Mario. He has no voice in this animation.

Sonic Meets His Match
Sonic's first speaking role was in the animation Sonic Meets His Match, where he is voiced by Colco. Sonic states that he thinks he's unstoppable, and dares anyone to fight him. He is then challenged by John Cena.